I say get it metered then carpet it and let us know what the before and after results are... If it actually has a negative effect, strip the carpet off and paint the inside of the port black or whatever matches....
all I can say is look at any of the major boxes, all the ports are smooth, hence aeroports //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif